Intraesophageal cardiac electrophysiology is a non-invasive test that can be done for young, middle-aged and elderly people. It is relatively safe, and this test can be performed in both outpatient and inpatient units. There may be discomfort during the test, such as nausea and vomiting when the gag reflex is more pronounced in some people who enter the throat through the catheter, and the reaction can disappear afterwards, and for some people the reaction may be more severe. However, it can be tolerated for most people. After the test is done, there is no discomfort and you can leave the hospital or clinic immediately after getting the report. Therefore, this test is a relatively safe, non-invasive test, which is necessary for patients with heart-related disorders, and is relatively safe, so patients can have it without much concern.